All m272 engines have aluminum engine blocks with a 90 vangle with siliconaluminum lined cylinders. Camshaft timing adjusters vane type, oil pressure controlled. Mercedesbenz m272 m273 engines me97 common failures. Read pdf mercedes m272 engine tuningengine family used in the 2000s decade. The engine light is not on and there are no codes fo read more. The m112 and m1 engines built between 1999 and 2005 have been very reliable with respect to timing chains and in general.
Mercedesbenz v6 and v8 engines had timing chain problems caused by balance shaft and idler gear failures. Mercedes benz v6 and v8 engines had timing chain problems caused by balance shaft and idler gear failures. There are a few aspects that set it apart from its predecessors. At the shop it would crank and start, but would idle at only 300 rpm. Mercedes benz engine defect class action settlement class. The family has a cast aluminum engine block and aluminum dohc cylinder heads with 4 valves per cylinder and variable valve timing. The majority of early production m272 mercedesbenz engines show the premature wear of the. The m272 engine consists of an aluminum engine block with a 90 vangle including siliconaluminum lined cylinders. With this engine, for the first time, continuous variable valve timing was implemented, as well as electronic control of coolant flow replacing a mechanical thermostat.
Introduced in 2004, it is based on the m112 v6 introduced in 1998. The mercedesbenz m273 engine is a v8 automobile piston engine family introduced in 2006. Mercedesbenz m272 and m273 engine lawsuit preliminarily. Mobil training coach mtc m272 engine timing can be referred to. But that is immaterial because the balance shaftidler sprocket is not itself part of the engine timing.
This manual can be viewed on any computer, as well as zoomed and printed, makes it easy to diagnose and repair problems with your machines electrical system. Mark timing chain relative to camshaft engine positioned at 40 crankshaft angle. The mercedesbenz m272 engine is a automobile piston v6 engine family used in the 2000s decade. Mercedes benz engine balance shaft sprocket gear issues m272. This hole is for manufacturing purposes only and not a timing reference. Engines with the balance shaft worn sprocket were mercedes benz 350 models example. Carry out an engine test run and check engine for leaks. How many of the m272 motors got problems with the balance. It was based on the similar m272 v6 introduced in 2004. Mercedes m272 m273 engine repair replacing timing chain 2015 pdf contains help for troubleshooting and will support you how to fix your problems immediately. The car has 142,269 miles and is a model year 2007. Natural gas engine egm engine control unit 83 pages summary of contents for mercedesbenz om 651 page 1 new generation of 4cylinder inline engines, om 651 introduction into service manual this printout will not be recorded by the update service. Mercedes m272 and m273 engine repair replacing timing chain 2015. Congratulations, you are now finished assembling the timing sprockets for mercedes m271 engine.
Timing chains and balance shaft repairs foreign motor. The mercedes benz m273 engine is a v8 automobile piston engine family used in the 2000s decade. Our sprockets have a small diameter 3mm hole just below the teeth. As a result, a balance shaft was installed in the engine block between the cylinder banks to reduce. The balance shaft in the early mercedesbenz m272 v6 engines was known to have problems due to soft metal being used in the manufacturing process of the timing gear.
I have replaced cylinder head gaskets and re assembled answered by a verified mercedes mechanic we use cookies to give you the best possible experience on our website. Complete engines for mercedesbenz e350 for sale ebay. Jun 21, 20 the video shows a simple method to be used on m272 engine in order to spot and detect the balance shaft failure based on a alignment of pulley. Mercedes m272 and m273 engine repair replacing timing chain 2015 pdf manufactured by the company mercedes presented for you in electronic format page size 595. The aluminum dohc cylinder heads have 4 valves per cylinder. The mercedes benz m273 engine is a v8 automobile piston engine family introduced in 2006. Mercedesbenz is one of the most wellknown auto manufacturers in the world, and continues to rival other automotive giants with their innovative designs and engineering. Retaining nut at front timing adjuster is reverse thread. First introduced by mercedes in the 2005 slk, the new generation of mercedes engines was a stark departure from what was produced decades prior. Repairing the balance shaft gear requires the removal of the engine. Unfortunately, the gear itself is not a replaceable item.
Timing chains and balance shaft repairs foreign motor works. Please explain the timing chain marks on a w211 m112. Conduct engine test run and check engine for leaks. Mercedes engine m272 m273 in model 212 manual pdf online. Over time, this gear wears down, causing timing to be thrown off. Hello, i have a mercedes benz r350 with the m272 v6 engine. Advice on repairing m272 balance shafttiming chain page. The mercedesbenz m273 engine is a v8 automobile piston engine family used in the 2000s decade. Pdf online mercedes engine m272 m273 in model 212 manual. The engine number falls into category 1, but the vehicle had 106,000 miles on the clock and fsh. After a short time, the rpm would drop and then the engine would stall. Autobild reports that the m272 v6 and m273 v8 engines used a sintered steel timing chain gear made of various materials starting in 2004, but switched to.
The repair tips provide basic information concerning disassembly and reassembly of the m272 and m273 engines. Mercedes built the engines of the m272 2,5, 3,0 and 3. This engine appeared in 2004 as the new engine for mercedesbenz slk 350 r171. Mercedes m272 and m273 engine repair replacing timing. If it skips a tooth, ii does not change timing between the crank and camshafts, but it will on the v6 engines cause the balance shaft to be out of time which will. Common mercedesbenz m272 engine trouble desert oasis. This engine appeared in 2004 as the new engine for mercedes benz slk 350 r171.
Mercedes m272 and m273 have a timing chain problem. Some mercedes v6 and v8 m272 m273 engines are prone to a failure of the balance shaft sprocket or idler gear sprocket. Reading a previous article it seems there was a bulletin about this pulley. These faulty gears wear out prematurely, excessively, and without warning, causing the vehicle to. The mercedesbenz m271 engine is a straight4 automobile piston engine family used in the 2000s decade. Mercedesbenz m272 and m273 engine problems will be covered by an extended warranty. Gone were the threevalve single cam m112 and m1 replaced by a high feature, fourvalve per cylinder, fourcam engine with continuously adjustable variable valve timing. Today i found out the cars check engine light is for codes 1208 and 1200 which indicate balance shaft symptom. Mercedes benz engine defect class action settlement. Advice on repairing m272 balance shafttiming chain page 3. The customer was driving this vehicle and the engine suddenly cut out, they had it towed to the shop. Do you know if it needs to be replaced, or just adjusted. The majority of early production m272 mercedesbenz engines show the premature wear of the balance shaft gears. The majority of early production m272 mercedes benz engines show the premature wear of the balance shaft gears.
E 50die 550, cl 500cl 550, cls 500cls 550, and gl 500gl 550 2006 gl 450, s 450, and. The engine serial number indicates it is part of a small group of m272 engines with potential balance shaft issues. Mercedes balance shaft gear failure and repair on v6 m272 and v8 m273 engines. You can also search mb wis software in to get access to the mb maintenace manual. The class seeks to represent owners and lessees of the foregoing. Mercedes benz m272 m273 engine timing chain manual download. Perfect for all diy persons your doityourself specialist for service manuals, workshop manuals, factory manuals, owner manuals, spare parts catalog and user manuals. Mercedes engine m272 m273 manual pdf free download engines 272, 273 in model 212 language. Unfortunately, all cars have their shortcomings and common problems they run into. There was no evidence in the sh of the balance shaft having been addressed, and no record on the mb computers of this work being done. Mercedes m272 m273 engine repair replacing timing chain 2015. The video shows a simple method to be used on m272 engine in order to spot and detect the balance shaft failure based on a alignment of pulley. There is aluminum cylinder block with 90 degrees angle, forged steel. Developed in conjunction with the m273 v8 petrol engine, the m272 engines cylinder banks were at a 90 degree angle from each other.
Introduced in 2004, it is based on the m112 v6 motor. An evolution of the m1 v8, all m273 motors have aluminum engine blocks, sequential fuel injection, forged steel connecting rods, a onepiece cast camshaft, and a magnesium intake manifold. The m272 and m273 engine introduced in 2006 have had problems with the timing resulting from a worn balance shaft sprocket m272 or timing chain idler gear on the m273. The material for the balance shaft sprocket and the timing chain guide wheel idler was modified on engines past the serial numbers listed above. Mercedes benz m273 engine timing chain repair manual. Im the one who put the white marking on the edge of the pulley. If you search m272 timing chain on youtube there are several videos. M272 balance shaft, timing chain repair mercedes medic. Feb 09, 2018 hi, i have a mercedes ml350 v6 with a m276 engine and its just destroyed its serpentine fan belt.
Mercedes produced certain models with defective gears in their balance shafts m272 engines or with defective idle gears m273 engines. The mercedesbenz m272 was a v6 petrol engine that was first introduced in 2004 to replace the m112 engine. Sep 10, 2012 applicable models not applicable to model 164. Mercedes c 230, slk 280, slk 350, and cls 350 2004 to present. How many cars can be hit with m272 and m273 engine from the damage remains in the dark. Sep 01, 2011 being impaired by a worn sprocket on the balance shaft on engine m272 or by a worn guide idler gear for the timing chain on engine m273. Mercedesbenz is currently trying to recapture the number one position in global luxury sales, but a quality problem on its home turf in germany seems to be undermining confidence in the brand.
Sep 10, 2012 m272 balance shaft problem when will it appear. What happens is the timing chain wears the softer metal on the sprocket down and in turn slack is developed in the chain. The timing mark for assembly of the engine is marked on the side in red. Information mercedes m272 m273 engine repair replacing timing chain 2015 this handbook has 5362305 bytes with 38 pages presented to you in pdf format page size. Mercedes produced certain models with defective gears in their balance shafts m272 engines or. M272 m273 balance shaft sprocket failure p1200 p1208 p0016. Available from 2011, the mercedesbenz m276 engine was a 60degree v6 petrol engine that replaced m272 engine. Admin greg, the deadline for this settlement has passed. Download mercedes m272 and m273 engine repair replacing timing chain 2015 pdf made by mercedes with 38 pages, files size 5362305 bytes, page size 595. M272, e25 e30 e35 timing chain replacement, repair. The damage is heralded by the illumination of the check engine light, and the repair costs, depending on model, up to 4700. June 23, 2015 without admitting wrongdoing, mercedesbenz has agreed to settle a lawsuit concerning m272.
Manufactured at mercedesbenzs stuttgartbad canstatt engine plant and developed in conjunction with m278 v8 engine, key attributes of the m276 engine included its. Mercedesbenz balance shaft problems and how to check your car. The definitive guide to the mercedesbenz m272 and m273. The mercedesbenz m272 engine is an automobile piston v6 engine family used in the 2000s decade. Mercedes benz m272 engine timing chain repair replacement. Notice that rather than the single marking at 305 degrees as in the video the w203 m272 engine has graduated crankshaft pulley markings, from 305 degrees to 320 degrees.
That gear may not have been hardened properly and is a subject of a class action. I have a mercedes ml350 v6 with a m276 engine and its just. M272 series is the new generation of v6 mercedes engines. Effects of a faulty camshaft adjuster solenoid in mercedes. Notice too the w203 m272 engine has a slightly different engine block boss than the one shown in the video. Mar, 2017 early signs of this problem are the check engine light and engine noise. If you have a mercedes benz with the m272 engine make sure it has been serial number higher than 2729. As a result, a balance shaft was installed in the engine block between the cylinder banks to reduce first and second order.